HADOOP HA yarn-site.xml

2.3. Minimum Settings for Automatic ResourceManager HA Configuration
The minimum yarn-site.xml configuration settings for ResourceManager
HA with automatic failover are as follows:
<property>
<name>yarn.resourcemanager.ha.enabled</name>
<value>true</value>
</property>

<property>
<name>yarn.resourcemanager.ha.rm-ids</name>
<value>rm1,rm2</value>
</property>

<property>
<name>yarn.resourcemanager.hostname.rm1</name>
<value>192.168.1.9</value>
</property>

<property>
<name>yarn.resourcemanager.hostname.rm2</name>
<value>192.168.1.10</value>
</property>

<property>
<name>yarn.resourcemanager.recovery.enabled</name>
<value>true</value>
</property>

<property>
<name>yarn.resourcemanager.store.class</name>
<value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>
</property>

<property>
<name>yarn.resourcemanager.zk-address</name>
<value>192.168.1.9:2181,192.168.1.10:2181</value>
<description>For multiple zk services, separate them with comma</description>
</property>

<property>
<name>yarn.resourcemanager.cluster-id</name>
<value>yarn-cluster</value>
</property>
Testing ResourceManager HA on a Single
Node
If you would like to test ResourceManager HA on a single node (launch more than one
ResourceManager on a single node), you need to add the following settings in                    yarn-site.xml:
To enable ResourceManager "rm1" to launch:
<property>
<name>yarn.resourcemanager.ha.id</name>
<value>rm1</value>
<description>If we want to launch more than one RM in single node, we need this configuration</description>
</property>
To enable ResourceManager "rm2" to launch:
<property>
<name>yarn.resourcemanager.ha.id</name>
<value>rm2</value>
<description>If we want to launch more than one RM in single node, we need this configuration</description>
</property>
You should also explicitly set values specific to each ResourceManager for the
following properties:
yarn.resourcemanager.address.<rm‐id>
yarn.resourcemanager.scheduler.address.<rm‐id>
yarn.resourcemanager.admin.address.<rm‐id>
yarn.resourcemanager.resource‐tracker.address.<rm‐id>
yarn.resourcemanager.webapp.address.<rm‐id> separately in
yarn‐site.xml
For example:
<!-- RM1 Configs -->
<property>
<name>yarn.resourcemanager.address.rm1</name>
<value>localhost:23140</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address.rm1</name>
<value>localhost:23130</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm1</name>
<value>localhost:23188</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address.rm1</name>
<value>localhost:23125</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address.rm1</name>
<value>localhost:23141</value>
</property>

<!-- RM2 configs -->
<property>
<name>yarn.resourcemanager.address.rm2</name>
<value>localhost:33140</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address.rm2</name>
<value>localhost:33130</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm2</name>
<value>localhost:33188</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address.rm2</name>
<value>localhost:33125</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address.rm2</name>
<value>localhost:33141</value>
</property>